Finding the Fourth Proportional to 70,880.30, 97,771.56 and 42,180.71

Step by Step Solution

1. Step 1: Write the proportion equation
   70,880.30 : 97,771.56 = 42,180.71 : x
2. Step 2: Convert to fraction form
   70,880.30/97,771.56 = 42,180.71/x
3. Step 3: Cross multiply
   70,880.30x = 97,771.56 × 42,180.71
4. Step 4: Simplify right side
   70,880.30x = 4,124,073,818.61
5. Step 5: Solve for x
   x = 4,124,073,818.61/70,880.30
6. Step 6: Final answer
   x = 58,183.64